BALTISCH-PORT (Paldiski, Estonia): 10 kopeck brown and blue, clear to ample margins, used on lettersheet with reverse side white label "BALTISCH-PORT" with manuscript "10/22 April 1858", to Borga, Finland. The stamp cancelled by faint straight-line "REVAL" and additionally tied by clear boxed "REVAL 12 APRIL 1858". A fine and rare entire; the only recorded from Baltisch Port. Certificate Buchsbayew 2022)
